Six hikers who huddled overnight on a steep slope amid treacherous terrain near Oneonta Falls are safe and well.

The Multnomah County Sheriff's Office reported that the last of the six was rescued about 1:30 p.m. Thursday, bringing to an end an ordeal that began Wednesday evening.

The hikers, including one adult and five teens, set off Wednesday for a day hike. They got lost when they went off the trail on their way back. Around 8:30 p.m., someone in the group called 911 for help when they found themselves on a steep incline leading to a cliff.

The sheriff's office identified the adult as Julie Fritts, 57, of Grass Valley, Ore. The teens included two girls from Gladstone, a boy and girl from Grass Valley, and a boy from Oregon City. The names of the teens have not yet been released.

A county search and rescue team made initial contact with the lost hikers shortly before 3:45 a.m.

No one in the hiking group was injured but they did not have flashlights or other emergency equipment with them and carried only limited snacks and water remaining from their initial hike.

About 7 a.m. Thursday, climbers from Portland Mountain Rescue were alerted just after 7 a.m., said Lt. Derrick Peterson, a spokesperson with the Multnomah County Sheriff's Office.

A team of three PMR rope experts began making their way towards the hikers around 8:45 a.m. and made contact with them at about 11:12 a.m., according to the sheriff's office.

At that point, they began a rope rescue aimed at bringing the hikers back up the hillside to the top.

After all had reached the top, the group was escorted out to an access road by rescuers.

"All of the hikers are in good condition and have a few scrapes and bruises but otherwise are in good spirits," said Lt. Steve Alexander of the MCSO in a news release.